STDMUB1-32.768K

Overview

The STDMUB1-32.768K is a surface-mount crystal resonator manufactured by NDK (NIHON DEMPA KOGYO CO., LTD). It operates at a fundamental frequency of 32.768 kHz with a load capacitance of 12.5 pF and an equivalent series resistance of 80 kOhms. The component provides a frequency tolerance of ±20 ppm and functions within a temperature range of -40°C to +85°C. It utilizes a 2-SMD, no-lead package with dimensions of 3.20mm x 1.50mm and a maximum height of 0.90mm. This device belongs to the NX3215SA series and is designed for high reliability in compact electronic applications.

Feature Summary

• Compact 2-SMD footprint suitable for space-constrained designs
• High stability quartz crystal construction
• Wide operating temperature range for industrial environments

Applications

• Embedded systems requiring precise timing
• Industrial automation control units
• Real-time clock circuits in consumer electronics

Procurement Notes

Verify the specific manufacturer part number against official NDK documentation to ensure authenticity. Confirm that the requested variant matches the required load capacitance and ESR specifications for your circuit design. Check for RoHS compliance status if environmental regulations apply to your production line. Ensure storage conditions meet moisture sensitivity level requirements prior to soldering.

Selection Notes

Select this component when a small form factor is critical for the PCB layout. The 32.768 kHz frequency is standard for real-time clock applications. Consider the 80 kOhm ESR value to ensure compatibility with the oscillator circuit's drive level requirements. Verify that the ±20 ppm tolerance meets the system's timing accuracy needs over the specified temperature range.

Part Context

This component is part of NDK's portfolio of miniature crystal devices. NDK specializes in quartz crystal manufacturing with a focus on high stability and accuracy. The company utilizes proprietary artificial crystal cultivation technology to produce components for mobile communications, automotive electronics, and IoT applications. Their products are known for dimensional diversity and performance in wide temperature ranges.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.